[Chromecast] Enable browser media tests to work on internal builds

[Chromecast] Enable browser media tests to work on internal builds

Browser tests that do media playback have never worked on internal
builds (they are disabled there) because we block media playback
until an application moves to foreground.  The test page never
reaches this state because it is managed outside ApplicationManager.

With this change, starting a test page can be delegated to internal
code and handled through ApplicationManager.  This allows the test
to reach foreground status and play media.

BUG=internal b/27192870

Committed: https://crrev.com/f2dcda891387f1513626ebdc1397fc0bda6adf38
Cr-Commit-Position: refs/heads/master@{#388549}

[halliwell, 2016-04-07 01:37:54]

Description was changed from

==========
[Chromecast] Enable browser media tests to work on internal builds

Browser tests that do media playback have never worked on internal
builds (they are disabled there) because we block media playback
until an application moves to foreground.  The test page never
reaches this state because it is managed outside ApplicationManager.

With this change, starting a test page can be delegated to internal
code and handled through ApplicationManager.  This allows the test
to reach foreground status and play media.

BUG=internal b/27192870
==========

to

==========
[Chromecast] Enable browser media tests to work on internal builds

Browser tests that do media playback have never worked on internal
builds (they are disabled there) because we block media playback
until an application moves to foreground.  The test page never
reaches this state because it is managed outside ApplicationManager.

With this change, starting a test page can be delegated to internal
code and handled through ApplicationManager.  This allows the test
to reach foreground status and play media.

BUG=internal b/27192870
==========

[halliwell, 2016-04-07 01:37:54]

halliwell@chromium.org changed reviewers:
+ derekjchow@chromium.org, maclellant@chromium.org

[halliwell, 2016-04-07 01:38:05]

Internal CL coming also ...

[derekjchow1, 2016-04-07 20:12:12]

lgtm % some discussion on the internal CL.

[halliwell, 2016-04-20 04:27:52]

On 2016/04/07 20:12:12, derekjchow1 wrote:
> lgtm % some discussion on the internal CL.

Simplified the helper API based on internal CL discussion.

[halliwell, 2016-04-20 18:15:24]

The CQ bit was checked by halliwell@chromium.org

[halliwell, 2016-04-20 18:15:24]

The patchset sent to the CQ was uploaded after l-g-t-m from
derekjchow@chromium.org
Link to the patchset: https://codereview.chromium.org/1870443003/#ps40001
(title: "Rebase")

[commit-bot: I haz the power, 2016-04-20 18:15:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1870443003/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1870443003/40001

[commit-bot: I haz the power, 2016-04-20 19:32:51]

Description was changed from

==========
[Chromecast] Enable browser media tests to work on internal builds

Browser tests that do media playback have never worked on internal
builds (they are disabled there) because we block media playback
until an application moves to foreground.  The test page never
reaches this state because it is managed outside ApplicationManager.

With this change, starting a test page can be delegated to internal
code and handled through ApplicationManager.  This allows the test
to reach foreground status and play media.

BUG=internal b/27192870
==========

to

==========
[Chromecast] Enable browser media tests to work on internal builds

Browser tests that do media playback have never worked on internal
builds (they are disabled there) because we block media playback
until an application moves to foreground.  The test page never
reaches this state because it is managed outside ApplicationManager.

With this change, starting a test page can be delegated to internal
code and handled through ApplicationManager.  This allows the test
to reach foreground status and play media.

BUG=internal b/27192870
==========

[commit-bot: I haz the power, 2016-04-20 19:32:52]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-04-22 19:25:24]

Description was changed from

==========
[Chromecast] Enable browser media tests to work on internal builds

Browser tests that do media playback have never worked on internal
builds (they are disabled there) because we block media playback
until an application moves to foreground.  The test page never
reaches this state because it is managed outside ApplicationManager.

With this change, starting a test page can be delegated to internal
code and handled through ApplicationManager.  This allows the test
to reach foreground status and play media.

BUG=internal b/27192870
==========

to

==========
[Chromecast] Enable browser media tests to work on internal builds

Browser tests that do media playback have never worked on internal
builds (they are disabled there) because we block media playback
until an application moves to foreground.  The test page never
reaches this state because it is managed outside ApplicationManager.

With this change, starting a test page can be delegated to internal
code and handled through ApplicationManager.  This allows the test
to reach foreground status and play media.

BUG=internal b/27192870

Committed: https://crrev.com/f2dcda891387f1513626ebdc1397fc0bda6adf38
Cr-Commit-Position: refs/heads/master@{#388549}
==========

[commit-bot: I haz the power, 2016-04-22 19:25:25]

Patchset 3 (id:??) landed as
https://crrev.com/f2dcda891387f1513626ebdc1397fc0bda6adf38
Cr-Commit-Position: refs/heads/master@{#388549}